Liquid-cooling radiator for motor vehicles



June 5, 1923.

E. T. CURRAN LIQUID COOLING RADIATOR FOR VEHICLES Filed April 2 1920 9wvawboz. Edward .016 2 351 his whammy fit Patented June 5, 1923.

EDWARD T., GURRAM,

LIQUID-COOLING Bantams non irosron Application filed. A ril 2,

To all whom it may concern Be itkno-Wn that LE WA D T, CURRAN, 1Icitizen of the United States; and a resident of Detroit, in the countyof Wayne and State of Michigan, have invented certain. new and usefulImprovements. in Liquid-Cooling Radiators for Motor Vehicles, of-Which', the following is a. specification.

This invention relates to. liquid cooling radiators used in connectionwith motor vehicles to facilitate the cooling of the cooling medium,such as. Water; of an internal combustion engine of the; power plant ofthe motor vehicle, and: it is the primary object of the inventiontoprovide aradiator of this character which is of extreme simplicity instructure,v cheapness. in cost of manufacture and highly eflicient inoperation'. V o a Liquid cooling radiators for'this purpose comprise apair of tanks, one of Whichfhas an inlet adapted to-be connected to theoutlet of the water jacket of an engine and also provided with a filleropening and the other tank havingyan outlet connected to the inlet ofthe Water vjacket ofthe engine, said tanks beingconnected. incirculation; by passages to conduct the Water from one tank to the otherin-thinstreams and thewater being cooled as it-floavs through suchpassages bydissipatingthe heat to the atmosphere. .It is the principalobject of the present invention" to; provide an improved constructionand arrangement of passages to connect'the' tanks incirculation tofacilit-atethe cooling ofthe Water in its passage from one to the other.i

' sectionalr'area of while; gradually toward the'rearjofi the radiator;I

is another object .of the invention. to provide the; conduits- Wit-l1(3OI;71-'=L1g3,l38 l :me -II;1- bersrzto lie adfiacent the conduit-tofacilitate the radiation and: dissipation ofthe heat;v the: corrugationsDi-811011; members extending? from the front to the; rear ofgj theradiator and; inclining downward to; direct I corrugated memhersireltubes etthe su ce i e r ws or" Dnmorn MIQEIGAN.

vmietns i I 192.0- Se ia 1%. 310 813. x Y

the cooling air in its P s age thrqiigl he p e b twe n he p ssagesi 'iadbwfi direction. I

It is aifurther ohjecto-fitheinvention to arrange theliquid conducting;passages in a radiator of this ro on r ar ft e o e afl t character aseries of Wall of the conduitsfin'the successive, rows 0 f c ndu t xendi g a pla e: pa alle thhe ront ofi he' rad awran'd he o he wells onvgi g owardft fi ear whe e y n. r t the fr m forw rd, cpndiii to the ne gadj cen rear o t-y 3 With the; above and other objects; and ad;-vantages as will'herein after appear the Vention comprises the novelfeaturesof conet 'om mbi ti n; of! elem nts. and? rangement of setforth, I I t n the drawing acco np y i1 1gov and; t m'- parts h re nafer r ul y ing a part of this specification, Figural a sectional tron 'di'at bn of a; iq 'cooling radiator constructed. in accordance with myinvention. I

F gure 2 is, sid leve 'om p rtly" in s ion, to show he;

thereto; I I I I i I I I I Figur 3 i a plan i w, p n-1y in. section, to,show the arrangement of thejlig uidl conducting conduits and thecnnectiOn thereof- With the-tanks of the radiator I Figure 4 is afragmentaryview in, per

spective of a portion of I the'connection of the, liquidconductinglconduits; With the tanks. It is; a; further object of'the:inventionv to gnr 5 is. an e larged. vi w inper peetive of theupperportionof aconduit to show the construction thereof to secure; the

ative to the, conduits n I Figure, (t is a plan view of; apa r oiconduits. to il us a e v he: arr ngem nt. at h men Qimr imam am ta k 7;fo c o d hav ng a ll r penin theontlet Qt th Water arr ngement, of: "tlivliquidconducting, passages and thearrangeme of he corrugat d embers:applieii a radiator t show 1 sam to the nks nd-the ntang em t 'o-r rthefer-ewe i at of the radiator.

16 are provided to engage jacket of an internal combustion engine (notshown), and a tank 11 havin an out let 12 arranged for connection withthe inlet of the jacket of the engine. The tanks are supported insuperposed and spaced relation by side members 13 to provide an openframe structure, and the side members have brackets 14 fixed thereto tomount the radiator in position upon the chassis frame of a motorvehicle.

The tanks 7 and 11 are connected in circulation by passages to conductthe liquid from the tank 7 to the tank 11 in thin streams to facilitatethe cooling of the liquid in its passage from one tank to the other byradiation and dissipating of the heat into the atmosphere. Thesepassages comprise vertically arranged conduits 15. It has beendemonstrated thatthe force with which the air strikes or impingesagainst an object is an important factor in the cooling of such objectby the air. For this purpose the conduits 15 are of such cross sectionalshape and connected to the tanks in such away as to present a broadenedface extending in a plane parallel with the front of the radiator forthe impingement of the air and to gradually diminish in size toward therear For this purpose the con duits are made of triangular shape incross section, as clearly shown in Figures 3 to 6, and arranged in a rowin spaced relation extending transversely of the radiator, and shown inthe present instance as consisting of three rows, with the conduits ofone row arranged directly in the rear of an adjacent forward conduit, asshown in Figures 2 and 3. The conduits of each row of conduits arearranged with a fiat wall or face to extend in a plane parallel with thefront of the radiator with the other walls converging toward the rear ofthe radiator. By this arrangement as the air strikes the front walls ofthe conduitsof the forward row it will flow around the lateral edges ofthe frontfaces to the side. faces of thevconduits and by the latter ,itwill be directed to the front faces ofthe next adjacent rear conduits,as

indicated by the arrows in tgure 6. To further facilitate this flow ofair partitions bet ween adjacent conduits, of the successive rows asclearly shown in Figures 3 and 4, The forward edges of these partitions16 preferably e71;- tend beyond the front of the conduits to serve as aguard for said conduits.

To facilitate the radiation and dissipation of the heat from theconduits corrugated members 17 are arranged adjacent to the convergingwalls or faces of the conduits; The corrugations of these members extend'di'agonally from the front to the rear and incline in a downwarddirection to direct the fiovv of the heated air from the front of theconduits to the rear and down ward and maintain the temperature of thewater in the lower portion of the radiator, which is usually of amuch-lower temperature than at the upper portion of the conduits, at aneven temperature which is very advantageous especially in cold weather.

In the construction of the radiator the conduits are formed totriangular shape in cross section and the opposite ends of the conduitsslitted at the corners, as shown at 1 8. The slitted ends of theconduits are then inserted in triangular openings 19 in plates 20, oneof which plates at one end of the conduits constitutes the bottom of thetank 7, and the other plate the top of the tank 11. The end portions'ofthe conduits are thenbent over to form flanges 15'. to engage the faceof the plates, as shown at 21, Figure i, and are secured a suitablemanner, as by brazing or soldering. The other walls of the tanks 7 and11 are then built up from the plates 20.

While I have shown and described a specific structure and arrangement ofparts, it is to be understood that various changes may be resorted towithout departing from the scope of the invention, and that portions ofthe invention may Having thus described my invention, I claim:

1. In a liquid cooling radiator for the purpose specified, a pair oftanks supported in spaced relation, and the other an outlet; conduits oftriangular shape in cross section to connect said tanks in circulationarranged with one wall of each conduit to. extend in a plane parallelwith the front of the radiatorand the other walls converging to the rearof the the converging walls of the conduits.

2. In a liquid purpose specified,

cooling radiator for the a pair of tanks supported in spaced relation,one tank having an inlet and the other an outlet; and conduits oftriangular shape in cross section to connect said tanks in circulation,said conduits being arranged in rows with the conduits of the successiverows in alinement and arranged with a wall of each conduit of thesuccessive rows extending in a plane parallel with the front of theradiator and the other walls converging toward the rear of the radiator.

3. In a liquid'cooling radiator for the purpose specified, a pair oftanks one having an inlet and the other an outlet, and conduits toconnect said tanks in circulation arranged in rows one row forwardly ofthe other, and each conduit having a broadened face to extend inparallel relation wlth the front of'the radiator to provide a wide facefor the impingement of the air and in position in one tank having aninlet t w d 1 1 B rear of the radiator to direct the in spaced relation,

broadened face" of a tube in a row at the f rear.

4. In a liquid cooling radiator for the purpose specified, a pairof'tanks supported one tank having an inlet and the other an outlet;conduits of triangular shape in cross section toconnect said tanks incirculation arranged with one wall of each conduit to extend in a planeparallel with the front of the radiator and the other walls convergingto the rear of the radiator; and corrugated members adjacent theconverging walls of the conduits with the corrugations extendingdiagonally from the front to the rear of the radiator andincliningdownward.

5. In a liquid radiator for the purpose specified, a pair oftanks,partitions extending between said tanks, passages in saidpartitions toconnect the tanks in circulation, each of said passages having abroadened face to extend in a plane parallel with't-the front of theradiator and gradually diminishing in cross sectional area toward therear of the radiator for the purpose specified.

6. .In a liquid cooling radiator for the purpose specified, a extendingbetween the tanks, conduits to connect said tanks in circulation betweensaid partitions, said conduits being of triangular shape in crosssection arranged with a broadened face of each conduit extending in aplane parallel with the front of the radiator and the other wallsconverging to ward the rear .of the radiator.

7. In a liquid cooling radiator for the purpose specified, a pair oftanks, partitions extending between the tanks, conduits to connect saidtanks incirculation between said partitions, said conduits being oftriangular shape in cross section arranged with a flattened face of eachconduit extending in a plane parallel with the front of the radiator andthe other walls converging toa ward the rear of the radiator, and corru-;of partitions extending pair of tanks, partitions tion with one wallgated members arranged at the converging sides ofthe tubes, the'corrugations extendand inclining in a the purpose specified. 1

8. In a liquid cooling radiator for the pair of tanks, a series between:the tanks, 1

purpose specified, 1a

and a series of conduits partitions one forward-of ed between a pair ofthe other connecta series of conduits between a pair of'par titions oneforward of the other, said conduits being of triangular tion with oneface of each conduit extending in a radiator and the other ward the rearfor the purpose specified.

10. In a liquid cooling radiator fo'r the purpose specified, a pair oftanks, a series. of partitions extending series of'co'nduits between apairbf' parti tions one forward of the other, said conduits being oftriangular shape-in cross sec-' of each conduit extend ing in aplaneparallel withithe front] of the between the j-tanks, a

ing diagonally from the front to the rear 1 I downward direction for 1S0at opposite ends to the tanks,-said conduits having a broadened face toextend in;

parallel with the front of the shape'in cross secplane parallelwith thefront of the i facesconverging toradiator and the other walls convergingto ward the rear, and corrugated members arranged at the sides of theconduits with the corrugations extending diagonally from the front tothe rear of the radiator and inclining downward for the purposespecified.

Signed at the cityofDetroit, in. the county of Wayne, this 22nd day ofMarch, '1920.

EDWARD T. OURRANI V and State of 'Michiga L I

